Working memory load and attentional capture by unpredicted color changes
نویسندگان
چکیده
منابع مشابه
Top-down influences on attentional capture by color changes.
Previous studies have shown that a change in an existing object is not as effective in capturing attention as the appearance of a new object. This view was recently challenged by Lu and Zhou (Psychonomic Bulletin and Review 12:567-572, 2005), who found strong capture effects for an object changing its color. We suspected that this finding critically depends on a procedural particularity in Lu a...
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The aim of the present study was to investigate mechanisms underlying attentional capture by color. Previous work has shown that a color singleton is able to summon attention only in the presence of a relevant attentional set, whereas when a color singleton is not useful for a task, evidence for purely stimulus-driven attentional capture is controversial. Three visual search experiments (T-L ta...
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Much previous research has demonstrated that visual search is typically disrupted by the presence of a unique "singleton" distractor in the search display. Here we show that attentional capture by an irrelevant color singleton during shape search critically depends on availability of working memory to the search task: When working memory is loaded in a concurrent yet unrelated verbal short-term...
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It has been proposed that during visual search a color singleton cannot capture attention in a bottom-up fashion (Jonides & Yantis, 1988). In the present study we manipulated the size of the attentional window by asking participants to detect either a global (diffuse attention) or a local shape (focused attention) before starting the search for a non-singleton target. We demonstrate that increa...
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In three experiments we investigated whether attentional and oculomotor capture occur only when object-defining abrupt onsets are used as distractors in a visual search task, or whether other salient stimuli also capture attention and the eyes even when they do not constitute new objects. The results showed that abrupt onsets (new objects) are especially effective in capturing attention and the...
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ژورنال
عنوان ژورنال: Journal of Vision
سال: 2012
ISSN: 1534-7362
DOI: 10.1167/12.9.363